Source Naturals, L-Arginine L-Citrulline Complex 1,000 mg - 240 Tablets…

Our verdict

Source Naturals, L-Arginine L-Citrulline Complex 1,000 mg… works out to $0.13 per serving of l-arginine, at 1000mg per serving in tablet form. That puts it around the median of the 24 l-arginine products we can price per dose, where the typical serving costs $0.11, a Value Index of 0.9 where the median product is 1.0. One container lasts 240 days at the label dose of 1 serving a day, about $3.85 a month. We could not verify a third-party certification for Source Naturals in a public registry. Worked out from the current retail price as of 2026-11-13; confirm the live price on Amazon.com before buying.